This activity is restricted every Saturday and Sunday before April 24, so you have to go early and generally have no chance in the afternoon. 50-20, you must pay with China UnionPay Express, that is, your CCB UnionPay single-currency credit card is bound to your mobile phone, and you can pay with APPLE PAY. For Android phones, you need to download the credit card bound with the core, and use this APP to pay when you pay. There is no discount for direct credit cards. Each card is limited to one discount per day, and you can enjoy 10 discount during the whole activity.